Abstract: Superconducting Niobium-Tin (Nb3Sn) plays important roles in magnet design for high energy physics and fusion reactor applications. Nb3Sn is capable of carrying significant amounts of current and producing strong magnetic fields, making it an ideal choice for several components of the tokamak magnetic confinement system in the ITER experimental fusion reactor. Despite its great supercond... read moreucting properties, Nb3Sn demonstrates degraded electrical properties when subjected to strain. After being cabled into a Cable-in-Conduit Conductor, Nb3Sn wires are subjected to a complex strain state during heat treatment and operation. The focus of this research was to examine a simpler subunit of the system by isolating the effects of pure bending strain on the critical current of a single Nb3Sn strand. Though there are several processes for manufacturing Nb3Sn wires, the samples tested in this study were bronze route wires from European Advanced Superconductors (EAS) and Hitachi Cable, Ltd. Pure bending experiments with three distinct sample holders to cover a nominal bending range of 0.0-1.4% in a 4.2 K, 15 T environment at the National High Magnetic Field Laboratory were performed. Samples from both manufacturers exhibited critical current degradation as high as 60%, but this degradation was not permanent. Data analysis, additional test runs and finite element analysis concluded that multiple strain cycles did not further degrade critical current performance and that the sample holders accurately applied the desired strain to the Nb3Sn wires. read less